Nestled in the desirable hills near Los Altos Country Club,this elegant French Country Ch teau offers 5,172 sq ft of thoughtfully designed living space on a generous 1.28-acre lot. Spanning three levels,the home features 4 bedrooms,3 full baths,2 half baths,and two primary suites - including a main suite with an expansive bathroom,dual vanities,and spacious walk-in closet.A custom office w/built-in bookshelves can be a 5th bedroom,while a huge separate bonus room offers endless possibilities as a media room,gym,or creative studio.The stately living room impresses w/high ceilings,a fireplace,wet bar, and sweeping views toward the San Mateo Bridge.Other highlights include separate formal dining room w/coffered ceilings,spacious family room,eat-in kitchen that opens to a private patio,an indoor laundry room w/built-in cabinetry and sink,4-car finished tandem garage w/extra-tall doors,workshop area,mezzanine storage,and space for oversized recreational vehicles.Driveway allows space for up to 5 more vehicles.The estates placement on one side of the lot presents a rare SB9 lot split opportunity,leaving a substantial portion available for a lot split,guesthouse,or ADU.This rare offering blends timeless architecture and future expansion potential within minutes of downtown Los Altos.